US20140041829A1 - Vehicle air conditioning device - Google Patents

Vehicle air conditioning device Download PDF

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Publication number
US20140041829A1
US20140041829A1 US14/005,869 US201214005869A US2014041829A1 US 20140041829 A1 US20140041829 A1 US 20140041829A1 US 201214005869 A US201214005869 A US 201214005869A US 2014041829 A1 US2014041829 A1 US 2014041829A1
Authority
US
United States
Prior art keywords
air
outside
outside air
passenger compartment
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/005,869
Other languages
English (en)
Inventor
Katsuji Taniguchi
Tomohiro Terada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Assigned to PANASONIC CORPORATION reassignment PANASONIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TANIGUCHI, KATSUJI, TERADA, TOMOHIRO
Publication of US20140041829A1 publication Critical patent/US20140041829A1/en
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PANASONIC CORPORATION
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: PANASONIC CORPORATION
Abandoned legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321Heat exchangers for air-conditioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00021Air flow details of HVAC devices
    • B60H1/00035Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment
    • B60H1/0005Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment the air being firstly cooled and subsequently heated or vice versa
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/02Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/02Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • B60H1/039Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from air leaving the interior of the vehicle, i.e. heat recovery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00021Air flow details of HVAC devices
    • B60H2001/00078Assembling, manufacturing or layout details
    • B60H2001/00085Assembling, manufacturing or layout details of air intake
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007Combined heating, ventilating, or cooling devices
    • B60H1/00021Air flow details of HVAC devices
    • B60H2001/0015Temperature regulation
    • B60H2001/00178Temperature regulation comprising an air passage from the HVAC box to the exterior of the cabin

Definitions

  • the present invention relates to a vehicle air conditioning apparatus to be installed in a vehicle such as an electric vehicle, for example.
  • a vehicle air conditioning apparatus which reduces a heat load in temperature control inside a passenger compartment by exchanging heat between outside air taken in from the outside of the passenger compartment and inside air within the passenger compartment to make the outside air closer to the temperature and humidity inside the passenger compartment and then introducing the outside air into a duct (see, Patent Literature (hereinafter, referred to as “PTL”) 1, for example).
  • PTL Patent Literature
  • driving fan causes inside air to be introduced into a duct through an inside air inlet while causing outside air to be introduced into the duct through an outside air inlet after the outside air passes through an inside and outside air heat exchanger in the vehicle air conditioning apparatus of PTL 1.
  • Some of a mixture of the outside air and inside air introduced into the duct passes through a cooling heat exchanger in the duct and is thus cooled, and then passes through a heating heat exchanger in the duct to be increased in temperature and is then blown into the passenger compartment. Meanwhile, some of the mixture is subjected to heat exchange with outside air by the inside and outside heat exchanger, and is discharged thereafter to the outside of the passenger compartment through a mixture outlet.
  • PTL 1 has a problem in that a sufficient heat exchange amount cannot be secured because heat is exchanged between a mixture of inside air introduced through an inside air inlet and outside air introduced through an outside air inlet, and outside air.
  • the amount of outside air in the mixture increases with an increase in the amount of outside air to be introduced, so that the heat exchange amount further decreases. Accordingly, when air conditioning is to be performed using only the outside air introduced from the outside, there arises a problem in that not only the heat exchange amount decreases but also the system can no longer serve as an air conditioning system.
  • a vehicle air conditioning apparatus includes: an outside air inlet through which outside air is introduced from outside of a passenger compartment; an inside air inlet through which inside air is introduced from inside of the passenger compartment; a heat exchanger that exchanges heat between inside air introduced through the inside air inlet and outside air introduced through the outside air inlet; a blower fan that blows outside air which has been subjected to heat exchange by the heat exchanger, or outside air introduced through the outside air inlet, or inside air introduced through the inside air inlet; an evaporator that cools outside air or inside air blown by the blower fan; and a condenser that heats the outside air or inside air cooled by the evaporator and sends the heated outside air or inside air toward the inside of the passenger compartment, in which: a first flow passage is formed through which outside air or inside air flows in the order of the blower fan, the evaporator, the condenser, and the inside of the passenger compartment; a second flow passage is formed which is separated from the first flow passage,
  • Power consumption of an air conditioning apparatus can be reduced by sufficiently reducing a temperature difference between the outside air introduced through an outside air inlet and the inside air introduced through an inside air inlet and thereby increasing a heat exchange amount between the inside air and the outside air in a heat exchanger.
  • FIG. 1 is a diagram illustrating a configuration of a vehicle air conditioning apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a diagram illustrating a configuration of a vehicle air conditioning apparatus according to Embodiment 2 of the present invention.
  • FIG. 1 is a block diagram illustrating a configuration of vehicle air conditioning apparatus 100 according to Embodiment 1 of the present invention.
  • Vehicle air conditioning apparatus 100 is configured to perform heating in a passenger compartment by collecting the heat of outside air, which is a so-called heat pump air conditioning apparatus for vehicles.
  • Sensible heat exchanger 101 (corresponds to heat exchanger) takes in outside air A from the outside of the passenger compartment through outside air inlet 112 and also takes in inside air B inside the passenger compartment. Sensible heat exchanger 101 exchanges heat between the inside air and outside air, which have been introduced into sensible heat exchanger 101 , to make the outside air closer to the temperature inside the passenger compartment. Sensible heat exchanger 101 supplies blower fan 102 with outside air C, which has been subjected to heat exchange, and also discharges inside air D which has been subjected to heat exchange to the outside of the passenger compartment.
  • Blower fan 102 introduces outside air C, which has been subjected to the heat exchange in sensible heat exchanger 101 , into air conditioning duct 113 .
  • blower fan 102 introduces inside air B in the passenger compartment into air conditioning duct 113 .
  • outside air C may be a mixture of air that has passed through sensible heat exchanger 101 , and bypassed air that has not passed through sensible heat exchanger 101 .
  • Evaporator 103 cools air F by exchanging heat between air F introduced into air conditioning duct 113 by blower fan 102 , and refrigerant. Air F cooled by evaporator 103 is supplied to condenser 104 .
  • this processing when outside air inlet 112 is opened by door 111 while the flow passage from inside air inlet 116 to blower fan 102 is closed by mix door 117 , only the outside air is cooled by evaporator 103 . Meanwhile, when outside air inlet 112 is closed by door 111 while the flow passage from inside air inlet 116 to blower fan 102 is opened by mix door 117 , only the inside air is cooled by evaporator 103 .
  • Condenser 104 raises the temperature of air G by heat exchange between air G cooled by evaporator 103 , and refrigerant.
  • air H with the temperature raised by condenser 104 is introduced inside the passenger compartment.
  • Air H introduced inside the passenger compartment by condenser 104 becomes inside air B, and the flow rate of inside air B is adjusted by mix door 117 , and inside air B is then introduced into at least one of air conditioning duct 113 and sensible heat exchanger 101 .
  • condenser 104 is provided with mix door 114 , and some of air G cooled by evaporator 103 is introduced inside the passenger compartment by adjustment of the aperture of mix door 114 without passing through condenser 104 .
  • Discharge hose 105 has one end connected to the outlet for the inside air of sensible heat exchanger 101 and the other end protruding from the passenger compartment through opening 115 provided to vehicle air conditioning apparatus 100 . With this configuration, discharge hose 105 discharges the inside air which has been subjected to heat exchange by sensible heat exchanger 101 to the outside of the passenger compartment.
  • Outside air inlet 112 is provided with door 111 .
  • door 111 opens and outside air inlet 112 is in communication with the outside of the passenger compartment, which allows outside air A to be taken in the passenger compartment through outside air inlet 112 .
  • door 111 is closed, which prevents outside air A from being taken in through outside air inlet 112 .
  • outside air introducing operation refers to a state where cooling and heating is performed in the passenger compartment by using a mixture of outside air and inside air or only outside air
  • inside air circulating operation refers to a state where cooling and heating is performed in the passenger compartment by using only inside air.
  • mix door 117 Inside air inlet 116 is provided with mix door 117 .
  • the degree of mixture between outside air and inside air during the outside air introducing operation is adjustable by adjustment of the aperture of mix door 117 .
  • mix door 117 is closed during the inside air circulating operation (this state of mix door 117 is illustrated with solid line in FIG. 1 ), so that inside air B is all supplied to air conditioning duct 113 during the inside air circulating operation.
  • a first flow passage is formed through which air flows in the order of blower fan 102 , evaporator 103 , condenser 104 , and the inside of the passenger compartment, and a second passage is formed through which air flows in the order of inside air inlet 116 , heat exchanger 101 , and the outside of the passenger compartment.
  • Embodiment 1 sensible heat exchanger 101 exchanges heat between outside air A not mixed with inside air B, and inside air B.
  • a temperature difference between outside air A and inside air B can be sufficiently secured, which makes it possible to increase the heat exchange amount between outside air A and inside air B. Accordingly, it is possible to reduce the heat load of the air conditioning apparatus and also to reduce power consumption thereof.
  • FIG. 2 is a diagram illustrating a configuration of vehicle air conditioning apparatus 200 according to Embodiment 2.
  • inside air D which has been subjected to heat exchange with outside air by sensible heat exchanger 101 , is discharged to the outside of the passenger compartment by using a simple structure.
  • Vehicle air conditioning apparatus 200 includes discharge hose 201 in place of discharge hose 105 in vehicle air conditioning apparatus 100 according to Embodiment 1 illustrated in FIG. 1 .
  • Discharge hose 201 has one end connected to an outlet for inside air of sensible heat exchanger 101 and the other end connected to drain hose 202 . With this configuration, discharge hose 201 discharges the inside air which has been subjected to heat exchange by sensible heat exchanger 101 to the outside of the passenger compartment through drain hose 202 . Drain hose 202 is mainly provided for collecting moisture generated during heat exchange between inside air and refrigerant in evaporator 103 and for discharging the moisture to the outside of the passenger compartment.
  • Drain hose 202 has one end connected to outlet 203 for drain water, which is formed at a bottom part of air conditioning duct 113 , and the other end protruding from the passenger compartment through opening 115 provided at a bottom part of vehicle air conditioning apparatus 200 . With this configuration, drain hose 202 discharges drain water discharged through outlet 203 and inside air discharged through discharge hose 201 to the outside of the passenger compartment.
  • Embodiment 2 inside air is discharged from the sensible heat exchanger by using a drain hose provided for discharging drain water to the outside of the passenger compartment. Accordingly, it is not necessary to provide an outlet for discharging inside air to the outside of the passenger compartment in Embodiment 2. Accordingly, in addition to the effects obtained in Embodiment 1, it is possible to obtain a simplified structure of the air conditioning apparatus in Embodiment 2.
  • sensible heat exchanger 101 is provided in Embodiments 1 and 2, the present invention is not limited to this configuration, and a total heat exchanger may be used instead of sensible heat exchanger 101 .
  • use of a sensible heat exchanger is advantageous in preventing windows from being fogged up in the passenger compartment. This is because, unlike a total heat exchanger, a sensible heat exchanger exchanges only the heat amount and does not exchange latent heat (moisture).
  • the vehicle air conditioning apparatus according to the present invention is favorable as an air conditioning apparatus to be installed in vehicles such as electric vehicles, for example.
US14/005,869 2011-03-29 2012-03-27 Vehicle air conditioning device Abandoned US20140041829A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011072038A JP4951133B1 (ja) 2011-03-29 2011-03-29 車載用空調装置
JP2011-072038 2011-03-29
PCT/JP2012/002106 WO2012132402A1 (ja) 2011-03-29 2012-03-27 車載用空調装置

Publications (1)

Publication Number Publication Date
US20140041829A1 true US20140041829A1 (en) 2014-02-13

Family

ID=46498750

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/005,869 Abandoned US20140041829A1 (en) 2011-03-29 2012-03-27 Vehicle air conditioning device

Country Status (5)

Country Link
US (1) US20140041829A1 (ja)
EP (1) EP2692557B1 (ja)
JP (1) JP4951133B1 (ja)
CN (1) CN103429444B (ja)
WO (1) WO2012132402A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221414A1 (en) * 2013-09-20 2016-08-04 Denso Corporation Air conditioning unit
US20200001685A1 (en) * 2018-06-29 2020-01-02 Ford Global Technologies, Llc Heating system and method for heating the interior of a vehicle and motor vehicle
FR3121869A1 (fr) * 2021-04-16 2022-10-21 Faurecia Interieur Industrie Dispositif de conditionnement d’air d’un habitacle d’un véhicule

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5588472B2 (ja) * 2012-03-26 2014-09-10 パナソニック株式会社 車載用空調装置および車両
WO2014009922A1 (en) * 2012-07-13 2014-01-16 Tata Motors Limited Automotive cabin environment management system
JP6083339B2 (ja) * 2013-07-09 2017-02-22 株式会社デンソー 車両用空調装置
DE102013112825A1 (de) * 2013-11-20 2015-05-21 Valeo Klimasysteme Gmbh Frontmodul eines Fahrzeugs
FR3033035B1 (fr) * 2015-02-19 2019-04-19 Valeo Systemes Thermiques Systeme de refroidissement pour un circuit de climatisation d'un vehicule automobile et utilisation dudit systeme de refroidissement
CN107618338B (zh) * 2016-07-15 2020-12-11 株式会社电装 空气循环器
EP4147892A1 (en) * 2021-09-10 2023-03-15 Thermo King Corporation Recovery heat exchanger in an environmental control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412425A (en) * 1980-12-09 1983-11-01 Nippon Soken, Inc. Air conditioning and ventilation system
US4604873A (en) * 1983-12-01 1986-08-12 Nissan Motor Co., Ltd. Air conditioning unit for automobiles
US6430951B1 (en) * 1991-04-26 2002-08-13 Denso Corporation Automotive airconditioner having condenser and evaporator provided within air duct
US6584795B1 (en) * 2002-04-30 2003-07-01 Deere & Company Condensate drain for an air conditioning system
US20050230096A1 (en) * 2004-04-19 2005-10-20 Honda Motor Co., Ltd. Vehicle air-conditioning system
US20060242984A1 (en) * 2004-12-21 2006-11-02 Halla Climate Control Corporation Two layer type air conditioner of vehicles

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JPS57138413A (en) * 1981-02-18 1982-08-26 Nippon Soken Inc Air conditioning ventilator for car
JPS62162110U (ja) * 1986-04-07 1987-10-15
JPH05147423A (ja) * 1991-11-29 1993-06-15 Nippondenso Co Ltd 車両用空調装置
DE19731369C1 (de) * 1997-07-22 1998-07-09 Daimler Benz Ag Klimaanlage für Fahrzeuge
JP3906570B2 (ja) * 1997-10-08 2007-04-18 株式会社デンソー 車両用空調装置
JP2000272326A (ja) * 1999-03-23 2000-10-03 Bosch Automotive Systems Corp 車両用空調装置
JP2000280724A (ja) * 1999-03-31 2000-10-10 Nissan Motor Co Ltd 車両用空調装置
JP2000318422A (ja) * 1999-05-13 2000-11-21 Bosch Automotive Systems Corp 車両用空気調和装置
JP4098495B2 (ja) * 2001-06-22 2008-06-11 カルソニックカンセイ株式会社 車両用空気調和装置
US6899614B1 (en) * 2003-12-08 2005-05-31 Behr Gmbh & Co. Ventilation unit for a motor vehicle
CN201014836Y (zh) * 2007-03-12 2008-01-30 毛立晓 车用空调装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412425A (en) * 1980-12-09 1983-11-01 Nippon Soken, Inc. Air conditioning and ventilation system
US4604873A (en) * 1983-12-01 1986-08-12 Nissan Motor Co., Ltd. Air conditioning unit for automobiles
US6430951B1 (en) * 1991-04-26 2002-08-13 Denso Corporation Automotive airconditioner having condenser and evaporator provided within air duct
US6584795B1 (en) * 2002-04-30 2003-07-01 Deere & Company Condensate drain for an air conditioning system
US20050230096A1 (en) * 2004-04-19 2005-10-20 Honda Motor Co., Ltd. Vehicle air-conditioning system
US20060242984A1 (en) * 2004-12-21 2006-11-02 Halla Climate Control Corporation Two layer type air conditioner of vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221414A1 (en) * 2013-09-20 2016-08-04 Denso Corporation Air conditioning unit
US20200001685A1 (en) * 2018-06-29 2020-01-02 Ford Global Technologies, Llc Heating system and method for heating the interior of a vehicle and motor vehicle
US11541722B2 (en) * 2018-06-29 2023-01-03 Ford Global Technologies, Llc Heating system and method for heating the interior of a vehicle and motor vehicle
FR3121869A1 (fr) * 2021-04-16 2022-10-21 Faurecia Interieur Industrie Dispositif de conditionnement d’air d’un habitacle d’un véhicule

Also Published As

Publication number Publication date
CN103429444B (zh) 2016-01-13
EP2692557A1 (en) 2014-02-05
EP2692557A4 (en) 2014-08-20
EP2692557B1 (en) 2018-02-07
JP2012206549A (ja) 2012-10-25
JP4951133B1 (ja) 2012-06-13
WO2012132402A1 (ja) 2012-10-04
CN103429444A (zh) 2013-12-04

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AS Assignment

Owner name: PANASONIC CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANIGUCHI, KATSUJI;TERADA, TOMOHIRO;SIGNING DATES FROM 20130712 TO 20130716;REEL/FRAME:031558/0277

AS Assignment

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:034194/0143

Effective date: 20141110

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:034194/0143

Effective date: 20141110

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., JAPAN

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:056788/0362

Effective date: 20141110